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Finding the Fourth Proportional to 61,830,689.46, 92,749,016.88 and 20,330,646.84

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Solution

The fourth proportional to 61,830,689.46, 92,749,016.88 and 20,330,646.84 is: 30,496,951.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,830,689.46 : 92,749,016.88 = 20,330,646.84 : x
  2. Step 2: Convert to fraction form
    61,830,689.46/92,749,016.88 = 20,330,646.84/x
  3. Step 3: Cross multiply
    61,830,689.46x = 92,749,016.88 × 20,330,646.84
  4. Step 4: Simplify right side
    61,830,689.46x = 1,885,647,506,944,478.50
  5. Step 5: Solve for x
    x = 1,885,647,506,944,478.50/61,830,689.46
  6. Step 6: Final answer
    x = 30,496,951.00

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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.