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Finding the Fourth Proportional to 235,298.64, 324,547.92 and 154,700.40

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Solution

The fourth proportional to 235,298.64, 324,547.92 and 154,700.40 is: 213,378.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,298.64 : 324,547.92 = 154,700.40 : x
  2. Step 2: Convert to fraction form
    235,298.64/324,547.92 = 154,700.40/x
  3. Step 3: Cross multiply
    235,298.64x = 324,547.92 × 154,700.40
  4. Step 4: Simplify right side
    235,298.64x = 50,207,693,043.17
  5. Step 5: Solve for x
    x = 50,207,693,043.17/235,298.64
  6. Step 6: Final answer
    x = 213,378.59

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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.