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Finding the Fourth Proportional to 345,714.12, 518,571.06 and 83,058.12

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Solution

The fourth proportional to 345,714.12, 518,571.06 and 83,058.12 is: 124,587.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,714.12 : 518,571.06 = 83,058.12 : x
  2. Step 2: Convert to fraction form
    345,714.12/518,571.06 = 83,058.12/x
  3. Step 3: Cross multiply
    345,714.12x = 518,571.06 × 83,058.12
  4. Step 4: Simplify right side
    345,714.12x = 43,071,537,330.01
  5. Step 5: Solve for x
    x = 43,071,537,330.01/345,714.12
  6. Step 6: Final answer
    x = 124,587.15

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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.