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Finding the Fourth Proportional to 209,574.78, 314,365.13 and 59,815.10

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Solution

The fourth proportional to 209,574.78, 314,365.13 and 59,815.10 is: 89,723.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,574.78 : 314,365.13 = 59,815.10 : x
  2. Step 2: Convert to fraction form
    209,574.78/314,365.13 = 59,815.10/x
  3. Step 3: Cross multiply
    209,574.78x = 314,365.13 × 59,815.10
  4. Step 4: Simplify right side
    209,574.78x = 18,803,779,816.56
  5. Step 5: Solve for x
    x = 18,803,779,816.56/209,574.78
  6. Step 6: Final answer
    x = 89,723.49

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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.