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Finding the Fourth Proportional to 85,032.51, 127,545.93 and 45,666.51

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Solution

The fourth proportional to 85,032.51, 127,545.93 and 45,666.51 is: 68,498.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,032.51 : 127,545.93 = 45,666.51 : x
  2. Step 2: Convert to fraction form
    85,032.51/127,545.93 = 45,666.51/x
  3. Step 3: Cross multiply
    85,032.51x = 127,545.93 × 45,666.51
  4. Step 4: Simplify right side
    85,032.51x = 5,824,577,487.80
  5. Step 5: Solve for x
    x = 5,824,577,487.80/85,032.51
  6. Step 6: Final answer
    x = 68,498.24

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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.