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Finding the Fourth Proportional to 127,859.58, 176,447.60 and 70,499.01

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Solution

The fourth proportional to 127,859.58, 176,447.60 and 70,499.01 is: 97,289.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,859.58 : 176,447.60 = 70,499.01 : x
  2. Step 2: Convert to fraction form
    127,859.58/176,447.60 = 70,499.01/x
  3. Step 3: Cross multiply
    127,859.58x = 176,447.60 × 70,499.01
  4. Step 4: Simplify right side
    127,859.58x = 12,439,381,116.88
  5. Step 5: Solve for x
    x = 12,439,381,116.88/127,859.58
  6. Step 6: Final answer
    x = 97,289.39

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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.