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Finding the Fourth Proportional to 247,459.20, 370,929.60 and 97,641.60

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Solution

The fourth proportional to 247,459.20, 370,929.60 and 97,641.60 is: 146,360.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,459.20 : 370,929.60 = 97,641.60 : x
  2. Step 2: Convert to fraction form
    247,459.20/370,929.60 = 97,641.60/x
  3. Step 3: Cross multiply
    247,459.20x = 370,929.60 × 97,641.60
  4. Step 4: Simplify right side
    247,459.20x = 36,218,159,631.36
  5. Step 5: Solve for x
    x = 36,218,159,631.36/247,459.20
  6. Step 6: Final answer
    x = 146,360.13

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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.