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Finding the Fourth Proportional to 144,967.18, 200,061.45 and 90,551.57

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Solution

The fourth proportional to 144,967.18, 200,061.45 and 90,551.57 is: 124,965.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,967.18 : 200,061.45 = 90,551.57 : x
  2. Step 2: Convert to fraction form
    144,967.18/200,061.45 = 90,551.57/x
  3. Step 3: Cross multiply
    144,967.18x = 200,061.45 × 90,551.57
  4. Step 4: Simplify right side
    144,967.18x = 18,115,878,393.98
  5. Step 5: Solve for x
    x = 18,115,878,393.98/144,967.18
  6. Step 6: Final answer
    x = 124,965.38

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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.