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Finding the Fourth Proportional to 93,577.60, 129,136.40 and 51,135.20

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Solution

The fourth proportional to 93,577.60, 129,136.40 and 51,135.20 is: 70,566.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,577.60 : 129,136.40 = 51,135.20 : x
  2. Step 2: Convert to fraction form
    93,577.60/129,136.40 = 51,135.20/x
  3. Step 3: Cross multiply
    93,577.60x = 129,136.40 × 51,135.20
  4. Step 4: Simplify right side
    93,577.60x = 6,603,415,641.28
  5. Step 5: Solve for x
    x = 6,603,415,641.28/93,577.60
  6. Step 6: Final answer
    x = 70,566.20

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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.