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Finding the Fourth Proportional to 127,543.58, 191,051.85 and 74,794.22

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Solution

The fourth proportional to 127,543.58, 191,051.85 and 74,794.22 is: 112,036.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,543.58 : 191,051.85 = 74,794.22 : x
  2. Step 2: Convert to fraction form
    127,543.58/191,051.85 = 74,794.22/x
  3. Step 3: Cross multiply
    127,543.58x = 191,051.85 × 74,794.22
  4. Step 4: Simplify right side
    127,543.58x = 14,289,574,100.31
  5. Step 5: Solve for x
    x = 14,289,574,100.31/127,543.58
  6. Step 6: Final answer
    x = 112,036.80

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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.