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Finding the Fourth Proportional to 99,073.98, 136,688.76 and 56,602.44

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Solution

The fourth proportional to 99,073.98, 136,688.76 and 56,602.44 is: 78,092.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,073.98 : 136,688.76 = 56,602.44 : x
  2. Step 2: Convert to fraction form
    99,073.98/136,688.76 = 56,602.44/x
  3. Step 3: Cross multiply
    99,073.98x = 136,688.76 × 56,602.44
  4. Step 4: Simplify right side
    99,073.98x = 7,736,917,336.57
  5. Step 5: Solve for x
    x = 7,736,917,336.57/99,073.98
  6. Step 6: Final answer
    x = 78,092.32

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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.