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Finding the Fourth Proportional to 60,703.30, 91,054.95 and 31,178.80

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Solution

The fourth proportional to 60,703.30, 91,054.95 and 31,178.80 is: 46,768.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,703.30 : 91,054.95 = 31,178.80 : x
  2. Step 2: Convert to fraction form
    60,703.30/91,054.95 = 31,178.80/x
  3. Step 3: Cross multiply
    60,703.30x = 91,054.95 × 31,178.80
  4. Step 4: Simplify right side
    60,703.30x = 2,838,984,075.06
  5. Step 5: Solve for x
    x = 2,838,984,075.06/60,703.30
  6. Step 6: Final answer
    x = 46,768.20

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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.