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Finding the Fourth Proportional to 69,506,985.60, 104,310,244.80 and 29,146,435.20

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Solution

The fourth proportional to 69,506,985.60, 104,310,244.80 and 29,146,435.20 is: 43,740,521.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,506,985.60 : 104,310,244.80 = 29,146,435.20 : x
  2. Step 2: Convert to fraction form
    69,506,985.60/104,310,244.80 = 29,146,435.20/x
  3. Step 3: Cross multiply
    69,506,985.60x = 104,310,244.80 × 29,146,435.20
  4. Step 4: Simplify right side
    69,506,985.60x = 3,040,271,790,759,337
  5. Step 5: Solve for x
    x = 3,040,271,790,759,337/69,506,985.60
  6. Step 6: Final answer
    x = 43,740,521.40

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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.