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Finding the Fourth Proportional to 73,872,004.80, 110,808,007.20 and 65,368,948.80

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Solution

The fourth proportional to 73,872,004.80, 110,808,007.20 and 65,368,948.80 is: 98,053,423.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,872,004.80 : 110,808,007.20 = 65,368,948.80 : x
  2. Step 2: Convert to fraction form
    73,872,004.80/110,808,007.20 = 65,368,948.80/x
  3. Step 3: Cross multiply
    73,872,004.80x = 110,808,007.20 × 65,368,948.80
  4. Step 4: Simplify right side
    73,872,004.80x = 7,243,402,949,286,831
  5. Step 5: Solve for x
    x = 7,243,402,949,286,831/73,872,004.80
  6. Step 6: Final answer
    x = 98,053,423.20

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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.