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Finding the Fourth Proportional to 220,363,666.40, 330,147,368.40 and 188,513,170.40

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Solution

The fourth proportional to 220,363,666.40, 330,147,368.40 and 188,513,170.40 is: 282,429,168.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,363,666.40 : 330,147,368.40 = 188,513,170.40 : x
  2. Step 2: Convert to fraction form
    220,363,666.40/330,147,368.40 = 188,513,170.40/x
  3. Step 3: Cross multiply
    220,363,666.40x = 330,147,368.40 × 188,513,170.40
  4. Step 4: Simplify right side
    220,363,666.40x = 62,237,127,116,300,776
  5. Step 5: Solve for x
    x = 62,237,127,116,300,776/220,363,666.40
  6. Step 6: Final answer
    x = 282,429,168.71

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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.