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Finding the Fourth Proportional to 157,605.70, 236,430.15 and 52,413.70

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Solution

The fourth proportional to 157,605.70, 236,430.15 and 52,413.70 is: 78,627.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,605.70 : 236,430.15 = 52,413.70 : x
  2. Step 2: Convert to fraction form
    157,605.70/236,430.15 = 52,413.70/x
  3. Step 3: Cross multiply
    157,605.70x = 236,430.15 × 52,413.70
  4. Step 4: Simplify right side
    157,605.70x = 12,392,178,953.06
  5. Step 5: Solve for x
    x = 12,392,178,953.06/157,605.70
  6. Step 6: Final answer
    x = 78,627.73

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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.