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Finding the Fourth Proportional to 247,547.20, 370,664.70 and 195,059.20

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Solution

The fourth proportional to 247,547.20, 370,664.70 and 195,059.20 is: 292,071.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,547.20 : 370,664.70 = 195,059.20 : x
  2. Step 2: Convert to fraction form
    247,547.20/370,664.70 = 195,059.20/x
  3. Step 3: Cross multiply
    247,547.20x = 370,664.70 × 195,059.20
  4. Step 4: Simplify right side
    247,547.20x = 72,301,559,850.24
  5. Step 5: Solve for x
    x = 72,301,559,850.24/247,547.20
  6. Step 6: Final answer
    x = 292,071.81

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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.