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Finding the Fourth Proportional to 127,458.20, 175,891.74 and 70,866.20

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Solution

The fourth proportional to 127,458.20, 175,891.74 and 70,866.20 is: 97,795.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,458.20 : 175,891.74 = 70,866.20 : x
  2. Step 2: Convert to fraction form
    127,458.20/175,891.74 = 70,866.20/x
  3. Step 3: Cross multiply
    127,458.20x = 175,891.74 × 70,866.20
  4. Step 4: Simplify right side
    127,458.20x = 12,464,779,225.19
  5. Step 5: Solve for x
    x = 12,464,779,225.19/127,458.20
  6. Step 6: Final answer
    x = 97,795.04

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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.