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Finding the Fourth Proportional to 261,337.74, 360,602.36 and 153,929.16

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Solution

The fourth proportional to 261,337.74, 360,602.36 and 153,929.16 is: 212,396.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,337.74 : 360,602.36 = 153,929.16 : x
  2. Step 2: Convert to fraction form
    261,337.74/360,602.36 = 153,929.16/x
  3. Step 3: Cross multiply
    261,337.74x = 360,602.36 × 153,929.16
  4. Step 4: Simplify right side
    261,337.74x = 55,507,215,796.16
  5. Step 5: Solve for x
    x = 55,507,215,796.16/261,337.74
  6. Step 6: Final answer
    x = 212,396.48

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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.