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Finding the Fourth Proportional to 114,740.70, 172,111.05 and 99,534.30

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Solution

The fourth proportional to 114,740.70, 172,111.05 and 99,534.30 is: 149,301.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,740.70 : 172,111.05 = 99,534.30 : x
  2. Step 2: Convert to fraction form
    114,740.70/172,111.05 = 99,534.30/x
  3. Step 3: Cross multiply
    114,740.70x = 172,111.05 × 99,534.30
  4. Step 4: Simplify right side
    114,740.70x = 17,130,952,884.02
  5. Step 5: Solve for x
    x = 17,130,952,884.02/114,740.70
  6. Step 6: Final answer
    x = 149,301.45

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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.