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Finding the Fourth Proportional to 92,848.20, 128,159.67 and 59,314.20

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Solution

The fourth proportional to 92,848.20, 128,159.67 and 59,314.20 is: 81,872.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,848.20 : 128,159.67 = 59,314.20 : x
  2. Step 2: Convert to fraction form
    92,848.20/128,159.67 = 59,314.20/x
  3. Step 3: Cross multiply
    92,848.20x = 128,159.67 × 59,314.20
  4. Step 4: Simplify right side
    92,848.20x = 7,601,688,298.31
  5. Step 5: Solve for x
    x = 7,601,688,298.31/92,848.20
  6. Step 6: Final answer
    x = 81,872.22

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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.