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Finding the Fourth Proportional to 140,547.58, 210,824.44 and 56,347.40

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Solution

The fourth proportional to 140,547.58, 210,824.44 and 56,347.40 is: 84,522.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,547.58 : 210,824.44 = 56,347.40 : x
  2. Step 2: Convert to fraction form
    140,547.58/210,824.44 = 56,347.40/x
  3. Step 3: Cross multiply
    140,547.58x = 210,824.44 × 56,347.40
  4. Step 4: Simplify right side
    140,547.58x = 11,879,407,996.33
  5. Step 5: Solve for x
    x = 11,879,407,996.33/140,547.58
  6. Step 6: Final answer
    x = 84,522.32

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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.