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Finding the Fourth Proportional to 238,421.70, 357,632.55 and 105,233.40

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Solution

The fourth proportional to 238,421.70, 357,632.55 and 105,233.40 is: 157,850.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,421.70 : 357,632.55 = 105,233.40 : x
  2. Step 2: Convert to fraction form
    238,421.70/357,632.55 = 105,233.40/x
  3. Step 3: Cross multiply
    238,421.70x = 357,632.55 × 105,233.40
  4. Step 4: Simplify right side
    238,421.70x = 37,634,889,187.17
  5. Step 5: Solve for x
    x = 37,634,889,187.17/238,421.70
  6. Step 6: Final answer
    x = 157,850.10

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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.