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Finding the Fourth Proportional to 157,968.60, 236,952.90 and 39,643.80

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Solution

The fourth proportional to 157,968.60, 236,952.90 and 39,643.80 is: 59,465.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,968.60 : 236,952.90 = 39,643.80 : x
  2. Step 2: Convert to fraction form
    157,968.60/236,952.90 = 39,643.80/x
  3. Step 3: Cross multiply
    157,968.60x = 236,952.90 × 39,643.80
  4. Step 4: Simplify right side
    157,968.60x = 9,393,713,377.02
  5. Step 5: Solve for x
    x = 9,393,713,377.02/157,968.60
  6. Step 6: Final answer
    x = 59,465.70

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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.