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Finding the Fourth Proportional to 77,373.16, 106,807.62 and 52,256.68

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Solution

The fourth proportional to 77,373.16, 106,807.62 and 52,256.68 is: 72,136.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,373.16 : 106,807.62 = 52,256.68 : x
  2. Step 2: Convert to fraction form
    77,373.16/106,807.62 = 52,256.68/x
  3. Step 3: Cross multiply
    77,373.16x = 106,807.62 × 52,256.68
  4. Step 4: Simplify right side
    77,373.16x = 5,581,411,619.90
  5. Step 5: Solve for x
    x = 5,581,411,619.90/77,373.16
  6. Step 6: Final answer
    x = 72,136.28

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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.