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Finding the Fourth Proportional to 555,281.69, 832,973.36 and 155,919.77

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Solution

The fourth proportional to 555,281.69, 832,973.36 and 155,919.77 is: 233,893.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,281.69 : 832,973.36 = 155,919.77 : x
  2. Step 2: Convert to fraction form
    555,281.69/832,973.36 = 155,919.77/x
  3. Step 3: Cross multiply
    555,281.69x = 832,973.36 × 155,919.77
  4. Step 4: Simplify right side
    555,281.69x = 129,877,009,762.86
  5. Step 5: Solve for x
    x = 129,877,009,762.86/555,281.69
  6. Step 6: Final answer
    x = 233,893.92

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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.