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Finding the Fourth Proportional to 354,030.63, 530,931.11 and 117,309.75

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Solution

The fourth proportional to 354,030.63, 530,931.11 and 117,309.75 is: 175,926.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,030.63 : 530,931.11 = 117,309.75 : x
  2. Step 2: Convert to fraction form
    354,030.63/530,931.11 = 117,309.75/x
  3. Step 3: Cross multiply
    354,030.63x = 530,931.11 × 117,309.75
  4. Step 4: Simplify right side
    354,030.63x = 62,283,395,194.77
  5. Step 5: Solve for x
    x = 62,283,395,194.77/354,030.63
  6. Step 6: Final answer
    x = 175,926.57

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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.