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Finding the Fourth Proportional to 556,465,699.80, 834,698,549.70 and 147,563,184.60

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Solution

The fourth proportional to 556,465,699.80, 834,698,549.70 and 147,563,184.60 is: 221,344,776.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,465,699.80 : 834,698,549.70 = 147,563,184.60 : x
  2. Step 2: Convert to fraction form
    556,465,699.80/834,698,549.70 = 147,563,184.60/x
  3. Step 3: Cross multiply
    556,465,699.80x = 834,698,549.70 × 147,563,184.60
  4. Step 4: Simplify right side
    556,465,699.80x = 123,170,776,174,733,376
  5. Step 5: Solve for x
    x = 123,170,776,174,733,376/556,465,699.80
  6. Step 6: Final answer
    x = 221,344,776.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.