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Finding the Fourth Proportional to 93,842.58, 129,561.59 and 72,291.76

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Solution

The fourth proportional to 93,842.58, 129,561.59 and 72,291.76 is: 99,807.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,842.58 : 129,561.59 = 72,291.76 : x
  2. Step 2: Convert to fraction form
    93,842.58/129,561.59 = 72,291.76/x
  3. Step 3: Cross multiply
    93,842.58x = 129,561.59 × 72,291.76
  4. Step 4: Simplify right side
    93,842.58x = 9,366,235,226.32
  5. Step 5: Solve for x
    x = 9,366,235,226.32/93,842.58
  6. Step 6: Final answer
    x = 99,807.94

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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.