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Finding the Fourth Proportional to 105,010.88, 144,918.65 and 59,690.76

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Solution

The fourth proportional to 105,010.88, 144,918.65 and 59,690.76 is: 82,375.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,010.88 : 144,918.65 = 59,690.76 : x
  2. Step 2: Convert to fraction form
    105,010.88/144,918.65 = 59,690.76/x
  3. Step 3: Cross multiply
    105,010.88x = 144,918.65 × 59,690.76
  4. Step 4: Simplify right side
    105,010.88x = 8,650,304,356.67
  5. Step 5: Solve for x
    x = 8,650,304,356.67/105,010.88
  6. Step 6: Final answer
    x = 82,375.32

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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.