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Finding the Fourth Proportional to 192,764.63, 266,005.42 and 105,547.36

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Solution

The fourth proportional to 192,764.63, 266,005.42 and 105,547.36 is: 145,650.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,764.63 : 266,005.42 = 105,547.36 : x
  2. Step 2: Convert to fraction form
    192,764.63/266,005.42 = 105,547.36/x
  3. Step 3: Cross multiply
    192,764.63x = 266,005.42 × 105,547.36
  4. Step 4: Simplify right side
    192,764.63x = 28,076,168,897.81
  5. Step 5: Solve for x
    x = 28,076,168,897.81/192,764.63
  6. Step 6: Final answer
    x = 145,650.01

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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.