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Finding the Fourth Proportional to 89,218.40, 133,924.80 and 49,852.40

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Solution

The fourth proportional to 89,218.40, 133,924.80 and 49,852.40 is: 74,832.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,218.40 : 133,924.80 = 49,852.40 : x
  2. Step 2: Convert to fraction form
    89,218.40/133,924.80 = 49,852.40/x
  3. Step 3: Cross multiply
    89,218.40x = 133,924.80 × 49,852.40
  4. Step 4: Simplify right side
    89,218.40x = 6,676,472,699.52
  5. Step 5: Solve for x
    x = 6,676,472,699.52/89,218.40
  6. Step 6: Final answer
    x = 74,832.91

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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.