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Finding the Fourth Proportional to 292,633.69, 438,985.70 and 103,054.87

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Solution

The fourth proportional to 292,633.69, 438,985.70 and 103,054.87 is: 154,594.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,633.69 : 438,985.70 = 103,054.87 : x
  2. Step 2: Convert to fraction form
    292,633.69/438,985.70 = 103,054.87/x
  3. Step 3: Cross multiply
    292,633.69x = 438,985.70 × 103,054.87
  4. Step 4: Simplify right side
    292,633.69x = 45,239,613,903.03
  5. Step 5: Solve for x
    x = 45,239,613,903.03/292,633.69
  6. Step 6: Final answer
    x = 154,594.69

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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.