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Finding the Fourth Proportional to 153,809.84, 230,785.80 and 60,340.40

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Solution

The fourth proportional to 153,809.84, 230,785.80 and 60,340.40 is: 90,538.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,809.84 : 230,785.80 = 60,340.40 : x
  2. Step 2: Convert to fraction form
    153,809.84/230,785.80 = 60,340.40/x
  3. Step 3: Cross multiply
    153,809.84x = 230,785.80 × 60,340.40
  4. Step 4: Simplify right side
    153,809.84x = 13,925,707,486.32
  5. Step 5: Solve for x
    x = 13,925,707,486.32/153,809.84
  6. Step 6: Final answer
    x = 90,538.47

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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.