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Finding the Fourth Proportional to 154,051.54, 212,570.06 and 86,060.14

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Solution

The fourth proportional to 154,051.54, 212,570.06 and 86,060.14 is: 118,751.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,051.54 : 212,570.06 = 86,060.14 : x
  2. Step 2: Convert to fraction form
    154,051.54/212,570.06 = 86,060.14/x
  3. Step 3: Cross multiply
    154,051.54x = 212,570.06 × 86,060.14
  4. Step 4: Simplify right side
    154,051.54x = 18,293,808,161.68
  5. Step 5: Solve for x
    x = 18,293,808,161.68/154,051.54
  6. Step 6: Final answer
    x = 118,751.22

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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.