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Finding the Fourth Proportional to 107,145.28, 147,862.28 and 58,746.19

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Solution

The fourth proportional to 107,145.28, 147,862.28 and 58,746.19 is: 81,070.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,145.28 : 147,862.28 = 58,746.19 : x
  2. Step 2: Convert to fraction form
    107,145.28/147,862.28 = 58,746.19/x
  3. Step 3: Cross multiply
    107,145.28x = 147,862.28 × 58,746.19
  4. Step 4: Simplify right side
    107,145.28x = 8,686,345,300.98
  5. Step 5: Solve for x
    x = 8,686,345,300.98/107,145.28
  6. Step 6: Final answer
    x = 81,070.73

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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.