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Finding the Fourth Proportional to 114,949,509.60, 172,471,503.60 and 42,201,141.60

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Solution

The fourth proportional to 114,949,509.60, 172,471,503.60 and 42,201,141.60 is: 63,319,055.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,949,509.60 : 172,471,503.60 = 42,201,141.60 : x
  2. Step 2: Convert to fraction form
    114,949,509.60/172,471,503.60 = 42,201,141.60/x
  3. Step 3: Cross multiply
    114,949,509.60x = 172,471,503.60 × 42,201,141.60
  4. Step 4: Simplify right side
    114,949,509.60x = 7,278,494,345,388,510
  5. Step 5: Solve for x
    x = 7,278,494,345,388,510/114,949,509.60
  6. Step 6: Final answer
    x = 63,319,055.22

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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.