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Finding the Fourth Proportional to 93,170.40, 128,598.12 and 52,907.70

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Solution

The fourth proportional to 93,170.40, 128,598.12 and 52,907.70 is: 73,025.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,170.40 : 128,598.12 = 52,907.70 : x
  2. Step 2: Convert to fraction form
    93,170.40/128,598.12 = 52,907.70/x
  3. Step 3: Cross multiply
    93,170.40x = 128,598.12 × 52,907.70
  4. Step 4: Simplify right side
    93,170.40x = 6,803,830,753.52
  5. Step 5: Solve for x
    x = 6,803,830,753.52/93,170.40
  6. Step 6: Final answer
    x = 73,025.67

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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.