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Finding the Fourth Proportional to 243,516.60, 335,835.32 and 152,881.02

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Solution

The fourth proportional to 243,516.60, 335,835.32 and 152,881.02 is: 210,839.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,516.60 : 335,835.32 = 152,881.02 : x
  2. Step 2: Convert to fraction form
    243,516.60/335,835.32 = 152,881.02/x
  3. Step 3: Cross multiply
    243,516.60x = 335,835.32 × 152,881.02
  4. Step 4: Simplify right side
    243,516.60x = 51,342,845,509.22
  5. Step 5: Solve for x
    x = 51,342,845,509.22/243,516.60
  6. Step 6: Final answer
    x = 210,839.20

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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.