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Finding the Fourth Proportional to 247,066.20, 370,307.70 and 104,911.20

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Solution

The fourth proportional to 247,066.20, 370,307.70 and 104,911.20 is: 157,242.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,066.20 : 370,307.70 = 104,911.20 : x
  2. Step 2: Convert to fraction form
    247,066.20/370,307.70 = 104,911.20/x
  3. Step 3: Cross multiply
    247,066.20x = 370,307.70 × 104,911.20
  4. Step 4: Simplify right side
    247,066.20x = 38,849,425,176.24
  5. Step 5: Solve for x
    x = 38,849,425,176.24/247,066.20
  6. Step 6: Final answer
    x = 157,242.98

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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.