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Finding the Fourth Proportional to 88,218.70, 133,058.47 and 82,386.70

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Solution

The fourth proportional to 88,218.70, 133,058.47 and 82,386.70 is: 124,262.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,218.70 : 133,058.47 = 82,386.70 : x
  2. Step 2: Convert to fraction form
    88,218.70/133,058.47 = 82,386.70/x
  3. Step 3: Cross multiply
    88,218.70x = 133,058.47 × 82,386.70
  4. Step 4: Simplify right side
    88,218.70x = 10,962,248,250.35
  5. Step 5: Solve for x
    x = 10,962,248,250.35/88,218.70
  6. Step 6: Final answer
    x = 124,262.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.