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Finding the Fourth Proportional to 154,841.10, 213,683.04 and 86,873.10

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Solution

The fourth proportional to 154,841.10, 213,683.04 and 86,873.10 is: 119,886.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,841.10 : 213,683.04 = 86,873.10 : x
  2. Step 2: Convert to fraction form
    154,841.10/213,683.04 = 86,873.10/x
  3. Step 3: Cross multiply
    154,841.10x = 213,683.04 × 86,873.10
  4. Step 4: Simplify right side
    154,841.10x = 18,563,308,102.22
  5. Step 5: Solve for x
    x = 18,563,308,102.22/154,841.10
  6. Step 6: Final answer
    x = 119,886.18

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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.