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Finding the Fourth Proportional to 98,666.70, 147,829.95 and 45,968.10

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Solution

The fourth proportional to 98,666.70, 147,829.95 and 45,968.10 is: 68,872.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,666.70 : 147,829.95 = 45,968.10 : x
  2. Step 2: Convert to fraction form
    98,666.70/147,829.95 = 45,968.10/x
  3. Step 3: Cross multiply
    98,666.70x = 147,829.95 × 45,968.10
  4. Step 4: Simplify right side
    98,666.70x = 6,795,461,924.60
  5. Step 5: Solve for x
    x = 6,795,461,924.60/98,666.70
  6. Step 6: Final answer
    x = 68,872.90

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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.