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Finding the Fourth Proportional to 153,713.05, 212,087.86 and 93,282.32

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Solution

The fourth proportional to 153,713.05, 212,087.86 and 93,282.32 is: 128,707.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,713.05 : 212,087.86 = 93,282.32 : x
  2. Step 2: Convert to fraction form
    153,713.05/212,087.86 = 93,282.32/x
  3. Step 3: Cross multiply
    153,713.05x = 212,087.86 × 93,282.32
  4. Step 4: Simplify right side
    153,713.05x = 19,784,047,624.64
  5. Step 5: Solve for x
    x = 19,784,047,624.64/153,713.05
  6. Step 6: Final answer
    x = 128,707.66

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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.