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Finding the Fourth Proportional to 604,969.60, 907,385.16 and 161,772.16

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Solution

The fourth proportional to 604,969.60, 907,385.16 and 161,772.16 is: 242,639.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,969.60 : 907,385.16 = 161,772.16 : x
  2. Step 2: Convert to fraction form
    604,969.60/907,385.16 = 161,772.16/x
  3. Step 3: Cross multiply
    604,969.60x = 907,385.16 × 161,772.16
  4. Step 4: Simplify right side
    604,969.60x = 146,789,657,285.15
  5. Step 5: Solve for x
    x = 146,789,657,285.15/604,969.60
  6. Step 6: Final answer
    x = 242,639.72

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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.