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Finding the Fourth Proportional to 152,613, 210,595.64 and 84,627.48

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Solution

The fourth proportional to 152,613, 210,595.64 and 84,627.48 is: 116,780.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,613 : 210,595.64 = 84,627.48 : x
  2. Step 2: Convert to fraction form
    152,613/210,595.64 = 84,627.48/x
  3. Step 3: Cross multiply
    152,613x = 210,595.64 × 84,627.48
  4. Step 4: Simplify right side
    152,613x = 17,822,178,312.19
  5. Step 5: Solve for x
    x = 17,822,178,312.19/152,613
  6. Step 6: Final answer
    x = 116,780.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.