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Finding the Fourth Proportional to 85,594.88, 128,411.76 and 46,151.12

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Solution

The fourth proportional to 85,594.88, 128,411.76 and 46,151.12 is: 69,237.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,594.88 : 128,411.76 = 46,151.12 : x
  2. Step 2: Convert to fraction form
    85,594.88/128,411.76 = 46,151.12/x
  3. Step 3: Cross multiply
    85,594.88x = 128,411.76 × 46,151.12
  4. Step 4: Simplify right side
    85,594.88x = 5,926,346,545.17
  5. Step 5: Solve for x
    x = 5,926,346,545.17/85,594.88
  6. Step 6: Final answer
    x = 69,237.16

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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.