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Finding the Fourth Proportional to 70,969,869.60, 106,454,804.40 and 48,295,053.60

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Solution

The fourth proportional to 70,969,869.60, 106,454,804.40 and 48,295,053.60 is: 72,442,580.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,969,869.60 : 106,454,804.40 = 48,295,053.60 : x
  2. Step 2: Convert to fraction form
    70,969,869.60/106,454,804.40 = 48,295,053.60/x
  3. Step 3: Cross multiply
    70,969,869.60x = 106,454,804.40 × 48,295,053.60
  4. Step 4: Simplify right side
    70,969,869.60x = 5,141,240,484,475,516
  5. Step 5: Solve for x
    x = 5,141,240,484,475,516/70,969,869.60
  6. Step 6: Final answer
    x = 72,442,580.40

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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.