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Finding the Fourth Proportional to 117,862.92, 162,649.14 and 64,870.92

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Solution

The fourth proportional to 117,862.92, 162,649.14 and 64,870.92 is: 89,520.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,862.92 : 162,649.14 = 64,870.92 : x
  2. Step 2: Convert to fraction form
    117,862.92/162,649.14 = 64,870.92/x
  3. Step 3: Cross multiply
    117,862.92x = 162,649.14 × 64,870.92
  4. Step 4: Simplify right side
    117,862.92x = 10,551,199,349.01
  5. Step 5: Solve for x
    x = 10,551,199,349.01/117,862.92
  6. Step 6: Final answer
    x = 89,520.94

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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.