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Finding the Fourth Proportional to 313,547.99, 470,345.45 and 88,926.51

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Solution

The fourth proportional to 313,547.99, 470,345.45 and 88,926.51 is: 133,396.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,547.99 : 470,345.45 = 88,926.51 : x
  2. Step 2: Convert to fraction form
    313,547.99/470,345.45 = 88,926.51/x
  3. Step 3: Cross multiply
    313,547.99x = 470,345.45 × 88,926.51
  4. Step 4: Simplify right side
    313,547.99x = 41,826,178,918.25
  5. Step 5: Solve for x
    x = 41,826,178,918.25/313,547.99
  6. Step 6: Final answer
    x = 133,396.42

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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.