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Finding the Fourth Proportional to 243,521.60, 335,842.21 and 152,886.02

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Solution

The fourth proportional to 243,521.60, 335,842.21 and 152,886.02 is: 210,846.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,521.60 : 335,842.21 = 152,886.02 : x
  2. Step 2: Convert to fraction form
    243,521.60/335,842.21 = 152,886.02/x
  3. Step 3: Cross multiply
    243,521.60x = 335,842.21 × 152,886.02
  4. Step 4: Simplify right side
    243,521.60x = 51,345,578,834.90
  5. Step 5: Solve for x
    x = 51,345,578,834.90/243,521.60
  6. Step 6: Final answer
    x = 210,846.10

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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.