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Finding the Fourth Proportional to 178,040.50, 245,695.89 and 98,552.50

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Solution

The fourth proportional to 178,040.50, 245,695.89 and 98,552.50 is: 136,002.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,040.50 : 245,695.89 = 98,552.50 : x
  2. Step 2: Convert to fraction form
    178,040.50/245,695.89 = 98,552.50/x
  3. Step 3: Cross multiply
    178,040.50x = 245,695.89 × 98,552.50
  4. Step 4: Simplify right side
    178,040.50x = 24,213,944,199.23
  5. Step 5: Solve for x
    x = 24,213,944,199.23/178,040.50
  6. Step 6: Final answer
    x = 136,002.45

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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.