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Finding the Fourth Proportional to 105,595.92, 145,703.88 and 60,253.20

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Solution

The fourth proportional to 105,595.92, 145,703.88 and 60,253.20 is: 83,138.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,595.92 : 145,703.88 = 60,253.20 : x
  2. Step 2: Convert to fraction form
    105,595.92/145,703.88 = 60,253.20/x
  3. Step 3: Cross multiply
    105,595.92x = 145,703.88 × 60,253.20
  4. Step 4: Simplify right side
    105,595.92x = 8,779,125,022.42
  5. Step 5: Solve for x
    x = 8,779,125,022.42/105,595.92
  6. Step 6: Final answer
    x = 83,138.87

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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.