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Finding the Fourth Proportional to 638,657.16, 957,707.52 and 183,147.90

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Solution

The fourth proportional to 638,657.16, 957,707.52 and 183,147.90 is: 274,642.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,657.16 : 957,707.52 = 183,147.90 : x
  2. Step 2: Convert to fraction form
    638,657.16/957,707.52 = 183,147.90/x
  3. Step 3: Cross multiply
    638,657.16x = 957,707.52 × 183,147.90
  4. Step 4: Simplify right side
    638,657.16x = 175,402,121,102.21
  5. Step 5: Solve for x
    x = 175,402,121,102.21/638,657.16
  6. Step 6: Final answer
    x = 274,642.06

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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.