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Finding the Fourth Proportional to 117,445.74, 162,075.54 and 63,730.76

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Solution

The fourth proportional to 117,445.74, 162,075.54 and 63,730.76 is: 87,948.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,445.74 : 162,075.54 = 63,730.76 : x
  2. Step 2: Convert to fraction form
    117,445.74/162,075.54 = 63,730.76/x
  3. Step 3: Cross multiply
    117,445.74x = 162,075.54 × 63,730.76
  4. Step 4: Simplify right side
    117,445.74x = 10,329,196,531.23
  5. Step 5: Solve for x
    x = 10,329,196,531.23/117,445.74
  6. Step 6: Final answer
    x = 87,948.67

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1.5x scale

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.