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Finding the Fourth Proportional to 190,124.76, 285,186.37 and 47,970.37

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Solution

The fourth proportional to 190,124.76, 285,186.37 and 47,970.37 is: 71,955.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,124.76 : 285,186.37 = 47,970.37 : x
  2. Step 2: Convert to fraction form
    190,124.76/285,186.37 = 47,970.37/x
  3. Step 3: Cross multiply
    190,124.76x = 285,186.37 × 47,970.37
  4. Step 4: Simplify right side
    190,124.76x = 13,680,495,687.86
  5. Step 5: Solve for x
    x = 13,680,495,687.86/190,124.76
  6. Step 6: Final answer
    x = 71,955.36

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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.