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Finding the Fourth Proportional to 127,968.61, 192,070.72 and 64,832.65

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Solution

The fourth proportional to 127,968.61, 192,070.72 and 64,832.65 is: 97,308.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,968.61 : 192,070.72 = 64,832.65 : x
  2. Step 2: Convert to fraction form
    127,968.61/192,070.72 = 64,832.65/x
  3. Step 3: Cross multiply
    127,968.61x = 192,070.72 × 64,832.65
  4. Step 4: Simplify right side
    127,968.61x = 12,452,452,804.65
  5. Step 5: Solve for x
    x = 12,452,452,804.65/127,968.61
  6. Step 6: Final answer
    x = 97,308.65

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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.