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Finding the Fourth Proportional to 93,859.75, 129,526.46 and 56,134

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Solution

The fourth proportional to 93,859.75, 129,526.46 and 56,134 is: 77,464.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,859.75 : 129,526.46 = 56,134 : x
  2. Step 2: Convert to fraction form
    93,859.75/129,526.46 = 56,134/x
  3. Step 3: Cross multiply
    93,859.75x = 129,526.46 × 56,134
  4. Step 4: Simplify right side
    93,859.75x = 7,270,838,305.64
  5. Step 5: Solve for x
    x = 7,270,838,305.64/93,859.75
  6. Step 6: Final answer
    x = 77,464.92

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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.