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Finding the Fourth Proportional to 75,341.46, 112,953.86 and 43,702.86

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Solution

The fourth proportional to 75,341.46, 112,953.86 and 43,702.86 is: 65,520.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,341.46 : 112,953.86 = 43,702.86 : x
  2. Step 2: Convert to fraction form
    75,341.46/112,953.86 = 43,702.86/x
  3. Step 3: Cross multiply
    75,341.46x = 112,953.86 × 43,702.86
  4. Step 4: Simplify right side
    75,341.46x = 4,936,406,730.04
  5. Step 5: Solve for x
    x = 4,936,406,730.04/75,341.46
  6. Step 6: Final answer
    x = 65,520.45

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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.