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Finding the Fourth Proportional to 118,019.70, 162,867.92 and 70,275.06

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Solution

The fourth proportional to 118,019.70, 162,867.92 and 70,275.06 is: 96,980.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,019.70 : 162,867.92 = 70,275.06 : x
  2. Step 2: Convert to fraction form
    118,019.70/162,867.92 = 70,275.06/x
  3. Step 3: Cross multiply
    118,019.70x = 162,867.92 × 70,275.06
  4. Step 4: Simplify right side
    118,019.70x = 11,445,552,498.70
  5. Step 5: Solve for x
    x = 11,445,552,498.70/118,019.70
  6. Step 6: Final answer
    x = 96,980.02

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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.