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Finding the Fourth Proportional to 69,925.76, 104,922.48 and 34,870.40

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Solution

The fourth proportional to 69,925.76, 104,922.48 and 34,870.40 is: 52,322.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,925.76 : 104,922.48 = 34,870.40 : x
  2. Step 2: Convert to fraction form
    69,925.76/104,922.48 = 34,870.40/x
  3. Step 3: Cross multiply
    69,925.76x = 104,922.48 × 34,870.40
  4. Step 4: Simplify right side
    69,925.76x = 3,658,688,846.59
  5. Step 5: Solve for x
    x = 3,658,688,846.59/69,925.76
  6. Step 6: Final answer
    x = 52,322.48

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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.