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Finding the Fourth Proportional to 93,866.75, 129,536.12 and 56,141

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Solution

The fourth proportional to 93,866.75, 129,536.12 and 56,141 is: 77,474.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,866.75 : 129,536.12 = 56,141 : x
  2. Step 2: Convert to fraction form
    93,866.75/129,536.12 = 56,141/x
  3. Step 3: Cross multiply
    93,866.75x = 129,536.12 × 56,141
  4. Step 4: Simplify right side
    93,866.75x = 7,272,287,312.92
  5. Step 5: Solve for x
    x = 7,272,287,312.92/93,866.75
  6. Step 6: Final answer
    x = 77,474.58

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1.5x scale

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.