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Finding the Fourth Proportional to 292,503.98, 438,755.98 and 70,887.98

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Solution

The fourth proportional to 292,503.98, 438,755.98 and 70,887.98 is: 106,331.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,503.98 : 438,755.98 = 70,887.98 : x
  2. Step 2: Convert to fraction form
    292,503.98/438,755.98 = 70,887.98/x
  3. Step 3: Cross multiply
    292,503.98x = 438,755.98 × 70,887.98
  4. Step 4: Simplify right side
    292,503.98x = 31,102,526,054.79
  5. Step 5: Solve for x
    x = 31,102,526,054.79/292,503.98
  6. Step 6: Final answer
    x = 106,331.97

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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.