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Finding the Fourth Proportional to 93,507.60, 129,042.58 and 55,774.56

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Solution

The fourth proportional to 93,507.60, 129,042.58 and 55,774.56 is: 76,970.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,507.60 : 129,042.58 = 55,774.56 : x
  2. Step 2: Convert to fraction form
    93,507.60/129,042.58 = 55,774.56/x
  3. Step 3: Cross multiply
    93,507.60x = 129,042.58 × 55,774.56
  4. Step 4: Simplify right side
    93,507.60x = 7,197,293,120.76
  5. Step 5: Solve for x
    x = 7,197,293,120.76/93,507.60
  6. Step 6: Final answer
    x = 76,970.14

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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.