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Finding the Fourth Proportional to 105,471.58, 145,543.47 and 60,151.48

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Solution

The fourth proportional to 105,471.58, 145,543.47 and 60,151.48 is: 83,004.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,471.58 : 145,543.47 = 60,151.48 : x
  2. Step 2: Convert to fraction form
    105,471.58/145,543.47 = 60,151.48/x
  3. Step 3: Cross multiply
    105,471.58x = 145,543.47 × 60,151.48
  4. Step 4: Simplify right side
    105,471.58x = 8,754,655,124.84
  5. Step 5: Solve for x
    x = 8,754,655,124.84/105,471.58
  6. Step 6: Final answer
    x = 83,004.87

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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.