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Finding the Fourth Proportional to 358,888.58, 538,411.68 and 106,149.32

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Solution

The fourth proportional to 358,888.58, 538,411.68 and 106,149.32 is: 159,247.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,888.58 : 538,411.68 = 106,149.32 : x
  2. Step 2: Convert to fraction form
    358,888.58/538,411.68 = 106,149.32/x
  3. Step 3: Cross multiply
    358,888.58x = 538,411.68 × 106,149.32
  4. Step 4: Simplify right side
    358,888.58x = 57,152,033,712.06
  5. Step 5: Solve for x
    x = 57,152,033,712.06/358,888.58
  6. Step 6: Final answer
    x = 159,247.29

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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.