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Finding the Fourth Proportional to 243,412.14, 365,152.76 and 74,946.47

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Solution

The fourth proportional to 243,412.14, 365,152.76 and 74,946.47 is: 112,430.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,412.14 : 365,152.76 = 74,946.47 : x
  2. Step 2: Convert to fraction form
    243,412.14/365,152.76 = 74,946.47/x
  3. Step 3: Cross multiply
    243,412.14x = 365,152.76 × 74,946.47
  4. Step 4: Simplify right side
    243,412.14x = 27,366,908,546.99
  5. Step 5: Solve for x
    x = 27,366,908,546.99/243,412.14
  6. Step 6: Final answer
    x = 112,430.34

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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.