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Finding the Fourth Proportional to 154,608.94, 213,358.35 and 86,624.74

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Solution

The fourth proportional to 154,608.94, 213,358.35 and 86,624.74 is: 119,541.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,608.94 : 213,358.35 = 86,624.74 : x
  2. Step 2: Convert to fraction form
    154,608.94/213,358.35 = 86,624.74/x
  3. Step 3: Cross multiply
    154,608.94x = 213,358.35 × 86,624.74
  4. Step 4: Simplify right side
    154,608.94x = 18,482,111,595.58
  5. Step 5: Solve for x
    x = 18,482,111,595.58/154,608.94
  6. Step 6: Final answer
    x = 119,541.03

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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.