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Finding the Fourth Proportional to 115,538.40, 173,485.80 and 63,050.40

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Solution

The fourth proportional to 115,538.40, 173,485.80 and 63,050.40 is: 94,672.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,538.40 : 173,485.80 = 63,050.40 : x
  2. Step 2: Convert to fraction form
    115,538.40/173,485.80 = 63,050.40/x
  3. Step 3: Cross multiply
    115,538.40x = 173,485.80 × 63,050.40
  4. Step 4: Simplify right side
    115,538.40x = 10,938,349,084.32
  5. Step 5: Solve for x
    x = 10,938,349,084.32/115,538.40
  6. Step 6: Final answer
    x = 94,672.85

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1.5x scale

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.