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Finding the Fourth Proportional to 159,112.61, 219,573.74 and 118,458.51

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Solution

The fourth proportional to 159,112.61, 219,573.74 and 118,458.51 is: 163,471.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,112.61 : 219,573.74 = 118,458.51 : x
  2. Step 2: Convert to fraction form
    159,112.61/219,573.74 = 118,458.51/x
  3. Step 3: Cross multiply
    159,112.61x = 219,573.74 × 118,458.51
  4. Step 4: Simplify right side
    159,112.61x = 26,010,377,483.23
  5. Step 5: Solve for x
    x = 26,010,377,483.23/159,112.61
  6. Step 6: Final answer
    x = 163,471.51

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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.