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Finding the Fourth Proportional to 160,074.93, 240,143.13 and 71,328.16

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Solution

The fourth proportional to 160,074.93, 240,143.13 and 71,328.16 is: 107,005.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,074.93 : 240,143.13 = 71,328.16 : x
  2. Step 2: Convert to fraction form
    160,074.93/240,143.13 = 71,328.16/x
  3. Step 3: Cross multiply
    160,074.93x = 240,143.13 × 71,328.16
  4. Step 4: Simplify right side
    160,074.93x = 17,128,967,899.72
  5. Step 5: Solve for x
    x = 17,128,967,899.72/160,074.93
  6. Step 6: Final answer
    x = 107,005.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.