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Finding the Fourth Proportional to 92,701.95, 139,043.30 and 62,907.45

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Solution

The fourth proportional to 92,701.95, 139,043.30 and 62,907.45 is: 94,354.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,701.95 : 139,043.30 = 62,907.45 : x
  2. Step 2: Convert to fraction form
    92,701.95/139,043.30 = 62,907.45/x
  3. Step 3: Cross multiply
    92,701.95x = 139,043.30 × 62,907.45
  4. Step 4: Simplify right side
    92,701.95x = 8,746,859,128.05
  5. Step 5: Solve for x
    x = 8,746,859,128.05/92,701.95
  6. Step 6: Final answer
    x = 94,354.64

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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.