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Finding the Fourth Proportional to 53,012,602.80, 79,518,904.20 and 36,888,289.20

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Solution

The fourth proportional to 53,012,602.80, 79,518,904.20 and 36,888,289.20 is: 55,332,433.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,012,602.80 : 79,518,904.20 = 36,888,289.20 : x
  2. Step 2: Convert to fraction form
    53,012,602.80/79,518,904.20 = 36,888,289.20/x
  3. Step 3: Cross multiply
    53,012,602.80x = 79,518,904.20 × 36,888,289.20
  4. Step 4: Simplify right side
    53,012,602.80x = 2,933,316,334,996,695
  5. Step 5: Solve for x
    x = 2,933,316,334,996,695/53,012,602.80
  6. Step 6: Final answer
    x = 55,332,433.80

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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.