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Finding the Fourth Proportional to 213,300.66, 320,009.34 and 93,335.81

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Solution

The fourth proportional to 213,300.66, 320,009.34 and 93,335.81 is: 140,029.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,300.66 : 320,009.34 = 93,335.81 : x
  2. Step 2: Convert to fraction form
    213,300.66/320,009.34 = 93,335.81/x
  3. Step 3: Cross multiply
    213,300.66x = 320,009.34 × 93,335.81
  4. Step 4: Simplify right side
    213,300.66x = 29,868,330,956.47
  5. Step 5: Solve for x
    x = 29,868,330,956.47/213,300.66
  6. Step 6: Final answer
    x = 140,029.25

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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.