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Finding the Fourth Proportional to 140,313.35, 210,541.10 and 61,428.26

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Solution

The fourth proportional to 140,313.35, 210,541.10 and 61,428.26 is: 92,173.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,313.35 : 210,541.10 = 61,428.26 : x
  2. Step 2: Convert to fraction form
    140,313.35/210,541.10 = 61,428.26/x
  3. Step 3: Cross multiply
    140,313.35x = 210,541.10 × 61,428.26
  4. Step 4: Simplify right side
    140,313.35x = 12,933,172,071.64
  5. Step 5: Solve for x
    x = 12,933,172,071.64/140,313.35
  6. Step 6: Final answer
    x = 92,173.50

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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.