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Finding the Fourth Proportional to 106,925.63, 147,551.51 and 60,978.53

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Solution

The fourth proportional to 106,925.63, 147,551.51 and 60,978.53 is: 84,147.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,925.63 : 147,551.51 = 60,978.53 : x
  2. Step 2: Convert to fraction form
    106,925.63/147,551.51 = 60,978.53/x
  3. Step 3: Cross multiply
    106,925.63x = 147,551.51 × 60,978.53
  4. Step 4: Simplify right side
    106,925.63x = 8,997,474,147.09
  5. Step 5: Solve for x
    x = 8,997,474,147.09/106,925.63
  6. Step 6: Final answer
    x = 84,147.03

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1.5x scale

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.