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Finding the Fourth Proportional to 528,088.10, 792,132.15 and 173,113.70

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Solution

The fourth proportional to 528,088.10, 792,132.15 and 173,113.70 is: 259,670.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,088.10 : 792,132.15 = 173,113.70 : x
  2. Step 2: Convert to fraction form
    528,088.10/792,132.15 = 173,113.70/x
  3. Step 3: Cross multiply
    528,088.10x = 792,132.15 × 173,113.70
  4. Step 4: Simplify right side
    528,088.10x = 137,128,927,375.46
  5. Step 5: Solve for x
    x = 137,128,927,375.46/528,088.10
  6. Step 6: Final answer
    x = 259,670.55

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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.