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Finding the Fourth Proportional to 104,877.36, 157,315.68 and 42,547.68

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Solution

The fourth proportional to 104,877.36, 157,315.68 and 42,547.68 is: 63,821.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,877.36 : 157,315.68 = 42,547.68 : x
  2. Step 2: Convert to fraction form
    104,877.36/157,315.68 = 42,547.68/x
  3. Step 3: Cross multiply
    104,877.36x = 157,315.68 × 42,547.68
  4. Step 4: Simplify right side
    104,877.36x = 6,693,417,211.62
  5. Step 5: Solve for x
    x = 6,693,417,211.62/104,877.36
  6. Step 6: Final answer
    x = 63,821.37

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1.5x scale

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.