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Finding the Fourth Proportional to 93,090.16, 128,465.73 and 50,648.71

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Solution

The fourth proportional to 93,090.16, 128,465.73 and 50,648.71 is: 69,895.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,090.16 : 128,465.73 = 50,648.71 : x
  2. Step 2: Convert to fraction form
    93,090.16/128,465.73 = 50,648.71/x
  3. Step 3: Cross multiply
    93,090.16x = 128,465.73 × 50,648.71
  4. Step 4: Simplify right side
    93,090.16x = 6,506,623,503.71
  5. Step 5: Solve for x
    x = 6,506,623,503.71/93,090.16
  6. Step 6: Final answer
    x = 69,895.93

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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.