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Finding the Fourth Proportional to 90,058.95, 135,091.16 and 30,893.77

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Solution

The fourth proportional to 90,058.95, 135,091.16 and 30,893.77 is: 46,341.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,058.95 : 135,091.16 = 30,893.77 : x
  2. Step 2: Convert to fraction form
    90,058.95/135,091.16 = 30,893.77/x
  3. Step 3: Cross multiply
    90,058.95x = 135,091.16 × 30,893.77
  4. Step 4: Simplify right side
    90,058.95x = 4,173,475,356.32
  5. Step 5: Solve for x
    x = 4,173,475,356.32/90,058.95
  6. Step 6: Final answer
    x = 46,341.59

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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.