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Finding the Fourth Proportional to 57,875,482.86, 79,867,851.01 and 31,770,444.84

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Solution

The fourth proportional to 57,875,482.86, 79,867,851.01 and 31,770,444.84 is: 43,843,040.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,875,482.86 : 79,867,851.01 = 31,770,444.84 : x
  2. Step 2: Convert to fraction form
    57,875,482.86/79,867,851.01 = 31,770,444.84/x
  3. Step 3: Cross multiply
    57,875,482.86x = 79,867,851.01 × 31,770,444.84
  4. Step 4: Simplify right side
    57,875,482.86x = 2,537,437,155,002,543.50
  5. Step 5: Solve for x
    x = 2,537,437,155,002,543.50/57,875,482.86
  6. Step 6: Final answer
    x = 43,843,040.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.