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Finding the Fourth Proportional to 152,475.76, 210,416.56 and 92,859.76

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Solution

The fourth proportional to 152,475.76, 210,416.56 and 92,859.76 is: 128,146.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,475.76 : 210,416.56 = 92,859.76 : x
  2. Step 2: Convert to fraction form
    152,475.76/210,416.56 = 92,859.76/x
  3. Step 3: Cross multiply
    152,475.76x = 210,416.56 × 92,859.76
  4. Step 4: Simplify right side
    152,475.76x = 19,539,231,261.63
  5. Step 5: Solve for x
    x = 19,539,231,261.63/152,475.76
  6. Step 6: Final answer
    x = 128,146.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.