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Finding the Fourth Proportional to 141,968.40, 212,875.80 and 58,870.80

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Solution

The fourth proportional to 141,968.40, 212,875.80 and 58,870.80 is: 88,274.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,968.40 : 212,875.80 = 58,870.80 : x
  2. Step 2: Convert to fraction form
    141,968.40/212,875.80 = 58,870.80/x
  3. Step 3: Cross multiply
    141,968.40x = 212,875.80 × 58,870.80
  4. Step 4: Simplify right side
    141,968.40x = 12,532,168,646.64
  5. Step 5: Solve for x
    x = 12,532,168,646.64/141,968.40
  6. Step 6: Final answer
    x = 88,274.35

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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.