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Finding the Fourth Proportional to 163,615.91, 225,807.01 and 99,996.08

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Solution

The fourth proportional to 163,615.91, 225,807.01 and 99,996.08 is: 138,005.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,615.91 : 225,807.01 = 99,996.08 : x
  2. Step 2: Convert to fraction form
    163,615.91/225,807.01 = 99,996.08/x
  3. Step 3: Cross multiply
    163,615.91x = 225,807.01 × 99,996.08
  4. Step 4: Simplify right side
    163,615.91x = 22,579,814,457.50
  5. Step 5: Solve for x
    x = 22,579,814,457.50/163,615.91
  6. Step 6: Final answer
    x = 138,005.01

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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.