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Finding the Fourth Proportional to 468,615.90, 702,981.45 and 152,987.10

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Solution

The fourth proportional to 468,615.90, 702,981.45 and 152,987.10 is: 229,499.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,615.90 : 702,981.45 = 152,987.10 : x
  2. Step 2: Convert to fraction form
    468,615.90/702,981.45 = 152,987.10/x
  3. Step 3: Cross multiply
    468,615.90x = 702,981.45 × 152,987.10
  4. Step 4: Simplify right side
    468,615.90x = 107,547,093,389.30
  5. Step 5: Solve for x
    x = 107,547,093,389.30/468,615.90
  6. Step 6: Final answer
    x = 229,499.45

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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.