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Finding the Fourth Proportional to 112,957.73, 169,378.73 and 59,678.31

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Solution

The fourth proportional to 112,957.73, 169,378.73 and 59,678.31 is: 89,486.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,957.73 : 169,378.73 = 59,678.31 : x
  2. Step 2: Convert to fraction form
    112,957.73/169,378.73 = 59,678.31/x
  3. Step 3: Cross multiply
    112,957.73x = 169,378.73 × 59,678.31
  4. Step 4: Simplify right side
    112,957.73x = 10,108,236,356.35
  5. Step 5: Solve for x
    x = 10,108,236,356.35/112,957.73
  6. Step 6: Final answer
    x = 89,486.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.