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Finding the Fourth Proportional to 93,710.76, 129,276.18 and 57,887.88

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Solution

The fourth proportional to 93,710.76, 129,276.18 and 57,887.88 is: 79,857.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,710.76 : 129,276.18 = 57,887.88 : x
  2. Step 2: Convert to fraction form
    93,710.76/129,276.18 = 57,887.88/x
  3. Step 3: Cross multiply
    93,710.76x = 129,276.18 × 57,887.88
  4. Step 4: Simplify right side
    93,710.76x = 7,483,523,994.70
  5. Step 5: Solve for x
    x = 7,483,523,994.70/93,710.76
  6. Step 6: Final answer
    x = 79,857.68

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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.