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Finding the Fourth Proportional to 144,616.90, 216,925.35 and 74,632.90

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Solution

The fourth proportional to 144,616.90, 216,925.35 and 74,632.90 is: 111,949.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,616.90 : 216,925.35 = 74,632.90 : x
  2. Step 2: Convert to fraction form
    144,616.90/216,925.35 = 74,632.90/x
  3. Step 3: Cross multiply
    144,616.90x = 216,925.35 × 74,632.90
  4. Step 4: Simplify right side
    144,616.90x = 16,189,767,954.02
  5. Step 5: Solve for x
    x = 16,189,767,954.02/144,616.90
  6. Step 6: Final answer
    x = 111,949.35

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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.