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Finding the Fourth Proportional to 190,178.16, 285,168.16 and 101,407.60

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Solution

The fourth proportional to 190,178.16, 285,168.16 and 101,407.60 is: 152,058.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,178.16 : 285,168.16 = 101,407.60 : x
  2. Step 2: Convert to fraction form
    190,178.16/285,168.16 = 101,407.60/x
  3. Step 3: Cross multiply
    190,178.16x = 285,168.16 × 101,407.60
  4. Step 4: Simplify right side
    190,178.16x = 28,918,218,702.02
  5. Step 5: Solve for x
    x = 28,918,218,702.02/190,178.16
  6. Step 6: Final answer
    x = 152,058.57

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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.