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Finding the Fourth Proportional to 150,058.85, 207,087.84 and 86,417.15

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Solution

The fourth proportional to 150,058.85, 207,087.84 and 86,417.15 is: 119,259.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,058.85 : 207,087.84 = 86,417.15 : x
  2. Step 2: Convert to fraction form
    150,058.85/207,087.84 = 86,417.15/x
  3. Step 3: Cross multiply
    150,058.85x = 207,087.84 × 86,417.15
  4. Step 4: Simplify right side
    150,058.85x = 17,895,939,897.02
  5. Step 5: Solve for x
    x = 17,895,939,897.02/150,058.85
  6. Step 6: Final answer
    x = 119,259.48

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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.