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Finding the Fourth Proportional to 118,057.95, 162,921.96 and 64,345.92

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Solution

The fourth proportional to 118,057.95, 162,921.96 and 64,345.92 is: 88,798.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,057.95 : 162,921.96 = 64,345.92 : x
  2. Step 2: Convert to fraction form
    118,057.95/162,921.96 = 64,345.92/x
  3. Step 3: Cross multiply
    118,057.95x = 162,921.96 × 64,345.92
  4. Step 4: Simplify right side
    118,057.95x = 10,483,363,404.40
  5. Step 5: Solve for x
    x = 10,483,363,404.40/118,057.95
  6. Step 6: Final answer
    x = 88,798.45

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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.