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Finding the Fourth Proportional to 259,987.66, 358,785.34 and 152,559.48

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Solution

The fourth proportional to 259,987.66, 358,785.34 and 152,559.48 is: 210,533.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,987.66 : 358,785.34 = 152,559.48 : x
  2. Step 2: Convert to fraction form
    259,987.66/358,785.34 = 152,559.48/x
  3. Step 3: Cross multiply
    259,987.66x = 358,785.34 × 152,559.48
  4. Step 4: Simplify right side
    259,987.66x = 54,736,105,092.72
  5. Step 5: Solve for x
    x = 54,736,105,092.72/259,987.66
  6. Step 6: Final answer
    x = 210,533.48

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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.