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Finding the Fourth Proportional to 178,038.50, 245,693.13 and 98,550.50

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Solution

The fourth proportional to 178,038.50, 245,693.13 and 98,550.50 is: 135,999.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,038.50 : 245,693.13 = 98,550.50 : x
  2. Step 2: Convert to fraction form
    178,038.50/245,693.13 = 98,550.50/x
  3. Step 3: Cross multiply
    178,038.50x = 245,693.13 × 98,550.50
  4. Step 4: Simplify right side
    178,038.50x = 24,213,180,808.07
  5. Step 5: Solve for x
    x = 24,213,180,808.07/178,038.50
  6. Step 6: Final answer
    x = 135,999.69

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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.