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Finding the Fourth Proportional to 221,333,627.60, 332,000,441.40 and 155,328,655.40

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Solution

The fourth proportional to 221,333,627.60, 332,000,441.40 and 155,328,655.40 is: 232,992,983.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,333,627.60 : 332,000,441.40 = 155,328,655.40 : x
  2. Step 2: Convert to fraction form
    221,333,627.60/332,000,441.40 = 155,328,655.40/x
  3. Step 3: Cross multiply
    221,333,627.60x = 332,000,441.40 × 155,328,655.40
  4. Step 4: Simplify right side
    221,333,627.60x = 51,569,182,154,868,488
  5. Step 5: Solve for x
    x = 51,569,182,154,868,488/221,333,627.60
  6. Step 6: Final answer
    x = 232,992,983.10

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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.