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Finding the Fourth Proportional to 352,095.39, 528,128.42 and 162,492.75

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Solution

The fourth proportional to 352,095.39, 528,128.42 and 162,492.75 is: 243,732.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,095.39 : 528,128.42 = 162,492.75 : x
  2. Step 2: Convert to fraction form
    352,095.39/528,128.42 = 162,492.75/x
  3. Step 3: Cross multiply
    352,095.39x = 528,128.42 × 162,492.75
  4. Step 4: Simplify right side
    352,095.39x = 85,817,038,506.49
  5. Step 5: Solve for x
    x = 85,817,038,506.49/352,095.39
  6. Step 6: Final answer
    x = 243,732.35

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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.