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Finding the Fourth Proportional to 92,575.15, 127,775.30 and 65,726.08

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Solution

The fourth proportional to 92,575.15, 127,775.30 and 65,726.08 is: 90,717.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,575.15 : 127,775.30 = 65,726.08 : x
  2. Step 2: Convert to fraction form
    92,575.15/127,775.30 = 65,726.08/x
  3. Step 3: Cross multiply
    92,575.15x = 127,775.30 × 65,726.08
  4. Step 4: Simplify right side
    92,575.15x = 8,398,168,941.76
  5. Step 5: Solve for x
    x = 8,398,168,941.76/92,575.15
  6. Step 6: Final answer
    x = 90,717.32

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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.