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Finding the Fourth Proportional to 500,369.39, 750,547.44 and 121,293.45

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Solution

The fourth proportional to 500,369.39, 750,547.44 and 121,293.45 is: 181,938.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,369.39 : 750,547.44 = 121,293.45 : x
  2. Step 2: Convert to fraction form
    500,369.39/750,547.44 = 121,293.45/x
  3. Step 3: Cross multiply
    500,369.39x = 750,547.44 × 121,293.45
  4. Step 4: Simplify right side
    500,369.39x = 91,036,488,386.27
  5. Step 5: Solve for x
    x = 91,036,488,386.27/500,369.39
  6. Step 6: Final answer
    x = 181,938.57

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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.