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Finding the Fourth Proportional to 105,292.90, 145,304.22 and 59,975.11

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Solution

The fourth proportional to 105,292.90, 145,304.22 and 59,975.11 is: 82,765.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,292.90 : 145,304.22 = 59,975.11 : x
  2. Step 2: Convert to fraction form
    105,292.90/145,304.22 = 59,975.11/x
  3. Step 3: Cross multiply
    105,292.90x = 145,304.22 × 59,975.11
  4. Step 4: Simplify right side
    105,292.90x = 8,714,636,577.96
  5. Step 5: Solve for x
    x = 8,714,636,577.96/105,292.90
  6. Step 6: Final answer
    x = 82,765.66

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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.