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Finding the Fourth Proportional to 185,953.61, 256,617.68 and 101,070.87

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Solution

The fourth proportional to 185,953.61, 256,617.68 and 101,070.87 is: 139,478.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,953.61 : 256,617.68 = 101,070.87 : x
  2. Step 2: Convert to fraction form
    185,953.61/256,617.68 = 101,070.87/x
  3. Step 3: Cross multiply
    185,953.61x = 256,617.68 × 101,070.87
  4. Step 4: Simplify right side
    185,953.61x = 25,936,572,174.98
  5. Step 5: Solve for x
    x = 25,936,572,174.98/185,953.61
  6. Step 6: Final answer
    x = 139,478.72

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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.