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Finding the Fourth Proportional to 235,730.01, 325,315.40 and 128,303.94

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Solution

The fourth proportional to 235,730.01, 325,315.40 and 128,303.94 is: 177,063.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,730.01 : 325,315.40 = 128,303.94 : x
  2. Step 2: Convert to fraction form
    235,730.01/325,315.40 = 128,303.94/x
  3. Step 3: Cross multiply
    235,730.01x = 325,315.40 × 128,303.94
  4. Step 4: Simplify right side
    235,730.01x = 41,739,246,921.16
  5. Step 5: Solve for x
    x = 41,739,246,921.16/235,730.01
  6. Step 6: Final answer
    x = 177,063.78

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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.