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Finding the Fourth Proportional to 71,569.50, 98,792.42 and 61,457.35

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Solution

The fourth proportional to 71,569.50, 98,792.42 and 61,457.35 is: 84,833.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,569.50 : 98,792.42 = 61,457.35 : x
  2. Step 2: Convert to fraction form
    71,569.50/98,792.42 = 61,457.35/x
  3. Step 3: Cross multiply
    71,569.50x = 98,792.42 × 61,457.35
  4. Step 4: Simplify right side
    71,569.50x = 6,071,520,333.29
  5. Step 5: Solve for x
    x = 6,071,520,333.29/71,569.50
  6. Step 6: Final answer
    x = 84,833.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.