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Finding the Fourth Proportional to 96,579, 133,279.50 and 56,320.68

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Solution

The fourth proportional to 96,579, 133,279.50 and 56,320.68 is: 77,722.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,579 : 133,279.50 = 56,320.68 : x
  2. Step 2: Convert to fraction form
    96,579/133,279.50 = 56,320.68/x
  3. Step 3: Cross multiply
    96,579x = 133,279.50 × 56,320.68
  4. Step 4: Simplify right side
    96,579x = 7,506,392,070.06
  5. Step 5: Solve for x
    x = 7,506,392,070.06/96,579
  6. Step 6: Final answer
    x = 77,722.82

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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.