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Finding the Fourth Proportional to 114,157.60, 157,519.08 and 71,686.06

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Solution

The fourth proportional to 114,157.60, 157,519.08 and 71,686.06 is: 98,915.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,157.60 : 157,519.08 = 71,686.06 : x
  2. Step 2: Convert to fraction form
    114,157.60/157,519.08 = 71,686.06/x
  3. Step 3: Cross multiply
    114,157.60x = 157,519.08 × 71,686.06
  4. Step 4: Simplify right side
    114,157.60x = 11,291,922,220.02
  5. Step 5: Solve for x
    x = 11,291,922,220.02/114,157.60
  6. Step 6: Final answer
    x = 98,915.20

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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.