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Finding the Fourth Proportional to 122,275.65, 171,302.55 and 122,275.65

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Solution

The fourth proportional to 122,275.65, 171,302.55 and 122,275.65 is: 171,302.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,275.65 : 171,302.55 = 122,275.65 : x
  2. Step 2: Convert to fraction form
    122,275.65/171,302.55 = 122,275.65/x
  3. Step 3: Cross multiply
    122,275.65x = 171,302.55 × 122,275.65
  4. Step 4: Simplify right side
    122,275.65x = 20,946,130,647.91
  5. Step 5: Solve for x
    x = 20,946,130,647.91/122,275.65
  6. Step 6: Final answer
    x = 171,302.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.