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Finding the Fourth Proportional to 69,941,124.60, 104,911,686.90 and 65,686,097.40

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Solution

The fourth proportional to 69,941,124.60, 104,911,686.90 and 65,686,097.40 is: 98,529,146.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,941,124.60 : 104,911,686.90 = 65,686,097.40 : x
  2. Step 2: Convert to fraction form
    69,941,124.60/104,911,686.90 = 65,686,097.40/x
  3. Step 3: Cross multiply
    69,941,124.60x = 104,911,686.90 × 65,686,097.40
  4. Step 4: Simplify right side
    69,941,124.60x = 6,891,239,284,111,704
  5. Step 5: Solve for x
    x = 6,891,239,284,111,704/69,941,124.60
  6. Step 6: Final answer
    x = 98,529,146.10

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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.