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Finding the Fourth Proportional to 104,254.95, 156,261.45 and 47,976.91

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Solution

The fourth proportional to 104,254.95, 156,261.45 and 47,976.91 is: 71,909.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,254.95 : 156,261.45 = 47,976.91 : x
  2. Step 2: Convert to fraction form
    104,254.95/156,261.45 = 47,976.91/x
  3. Step 3: Cross multiply
    104,254.95x = 156,261.45 × 47,976.91
  4. Step 4: Simplify right side
    104,254.95x = 7,496,941,312.38
  5. Step 5: Solve for x
    x = 7,496,941,312.38/104,254.95
  6. Step 6: Final answer
    x = 71,909.69

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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.