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Finding the Fourth Proportional to 126,802.51, 174,992.74 and 70,213.88

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Solution

The fourth proportional to 126,802.51, 174,992.74 and 70,213.88 is: 96,898.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,802.51 : 174,992.74 = 70,213.88 : x
  2. Step 2: Convert to fraction form
    126,802.51/174,992.74 = 70,213.88/x
  3. Step 3: Cross multiply
    126,802.51x = 174,992.74 × 70,213.88
  4. Step 4: Simplify right side
    126,802.51x = 12,286,919,509.18
  5. Step 5: Solve for x
    x = 12,286,919,509.18/126,802.51
  6. Step 6: Final answer
    x = 96,898.08

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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.