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Finding the Fourth Proportional to 66,801.64, 92,303.54 and 52,574.53

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Solution

The fourth proportional to 66,801.64, 92,303.54 and 52,574.53 is: 72,645.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,801.64 : 92,303.54 = 52,574.53 : x
  2. Step 2: Convert to fraction form
    66,801.64/92,303.54 = 52,574.53/x
  3. Step 3: Cross multiply
    66,801.64x = 92,303.54 × 52,574.53
  4. Step 4: Simplify right side
    66,801.64x = 4,852,815,232.84
  5. Step 5: Solve for x
    x = 4,852,815,232.84/66,801.64
  6. Step 6: Final answer
    x = 72,645.15

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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.