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Finding the Fourth Proportional to 127,887.50, 176,485.09 and 70,525.40

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Solution

The fourth proportional to 127,887.50, 176,485.09 and 70,525.40 is: 97,325.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,887.50 : 176,485.09 = 70,525.40 : x
  2. Step 2: Convert to fraction form
    127,887.50/176,485.09 = 70,525.40/x
  3. Step 3: Cross multiply
    127,887.50x = 176,485.09 × 70,525.40
  4. Step 4: Simplify right side
    127,887.50x = 12,446,680,987.14
  5. Step 5: Solve for x
    x = 12,446,680,987.14/127,887.50
  6. Step 6: Final answer
    x = 97,325.23

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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.